Question: How do I fix my messed up timeline?

I've just installed Adobe After Effects for future projects I want to work on and began practicing using it, I saw this tutorial on how to do an effect I liked and tried it out.
While messing with the time settings I made my timeline look weird? It doesn't display seconds anymore, and I really don't know how to navigate this, any help on how to make my timeline display seconds instead of whatever this is?


